EP0019845B1 - Ethers éthyliques d'isocamphyl-gayacol, procédé pour leur préparation, et leur utilisation pour la préparation de 3-(isocamphyl-(5))-cyclohexanol - Google Patents

Ethers éthyliques d'isocamphyl-gayacol, procédé pour leur préparation, et leur utilisation pour la préparation de 3-(isocamphyl-(5))-cyclohexanol Download PDF

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Publication number
EP0019845B1
EP0019845B1 EP19800102822 EP80102822A EP0019845B1 EP 0019845 B1 EP0019845 B1 EP 0019845B1 EP 19800102822 EP19800102822 EP 19800102822 EP 80102822 A EP80102822 A EP 80102822A EP 0019845 B1 EP0019845 B1 EP 0019845B1
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EP
European Patent Office
Prior art keywords
isocamphyl
guaiacol
cyclohexanol
isocamph
preparation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19800102822
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German (de)
English (en)
Other versions
EP0019845A1 (fr
Inventor
Kurt Dr. Bauer
Gerd-Karl Dr. Lange
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Haarmann and Reimer GmbH
Original Assignee
Haarmann and Reimer GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Haarmann and Reimer GmbH filed Critical Haarmann and Reimer GmbH
Publication of EP0019845A1 publication Critical patent/EP0019845A1/fr
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C43/00—Ethers; Compounds having groups, groups or groups
    • C07C43/02—Ethers
    • C07C43/20—Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring
    • C07C43/21—Ethers having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring containing rings other than six-membered aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/17—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrogenation of carbon-to-carbon double or triple bonds
    • C07C29/19—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrogenation of carbon-to-carbon double or triple bonds in six-membered aromatic rings
    • C07C29/20—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrogenation of carbon-to-carbon double or triple bonds in six-membered aromatic rings in a non-condensed rings substituted with hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/14—The ring being saturated
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2602/00—Systems containing two condensed rings
    • C07C2602/36—Systems containing two condensed rings the rings having more than two atoms in common
    • C07C2602/42—Systems containing two condensed rings the rings having more than two atoms in common the bicyclo ring system containing seven carbon atoms

Definitions

  • the invention relates to [isocamphyl (5)] guaiacyl ether of the formula in the
  • R represents an isocamphyl (5) radical located in the 6- or 4-position relative to the ethoxy group.
  • the invention further relates to a process for the preparation of the ethers of the formula (I).
  • the process is characterized in that 6- or 4- [isocamphyl- (5)) - guaiacol in the form of their alkali metal salts are alkylated with ethyl halide or diethyl sulfate.
  • the invention relates to the use of the ethers of formula (I) or their mixtures for the preparation of 3- (isocamphyl- (5) -cyclohexanol.
  • the 6- and 4- [isocamphyl (5)] gua-jacyl ethyl ether is preferred.
  • alkali metal hydroxide in particular sodium or potassium hydroxide
  • alkali metal alcoholate in particular sodium or potassium ethylate
  • Alkali carbonates especially potassium carbonate
  • the alkylation is preferably carried out when using alkali hydroxide in aqueous solution with diethyl sulfate, when using alkali alcoholate in the corresponding alcohol with ethyl iodide, ethyl bromide or diethyl sulfate or when using potassium carbonate in acetone with diethyl sulfate.
  • Isocamphyl (5) guaiacol and alkali metal hydroxide or alcoholate are advantageously used in a molar ratio of 1: 1-5, preferably 1: 1-3.
  • the alkylating agent is used in an amount of 1.2 to 4 moles, preferably 1.25 to 3 moles, per mole of isocamphyl- (5) guaiacol.
  • the alkylation is advantageously carried out at 0 to 80 ° C., preferably 30 to 60 ° C.
  • the ethers of the formula (I) according to the invention are first partially cleaved to give 5- or 3- [isocamphyl- (5)] - 2-ethoxyphenol.
  • the partial ether cleavage can be carried out with alkali alcoholate in alcohol, e.g. B. sodium or potassium methylate in methanol or sodium or potassium ethylate in ethanol, at 130 to 200 ° C, preferably 150 to 180 ° C, in an autoclave.
  • alkali alcoholate in alcohol e.g. B. sodium or potassium methylate in methanol or sodium or potassium ethylate in ethanol
  • partial ether cleavage with a Grignard reagent such as methyl magnesium bromide or iodide is preferred at temperatures from 100 to 160 ° C., preferably 120 to 140 ° C.
  • the 5- or 3- [isocamphyl- (5)] - 2-ethoxyphenol obtained in the partial ether cleavage of the ethers of the general formula (I) according to the invention is then treated with Raney nickel at a temperature of 180 to 210 ° C. and a pressure of 130 to 200 bar with hydrogen to 3- [isocamphyl- (5)] - cyclohexanol.
  • the ethers of the formula (I) according to the invention are valuable intermediates for the preparation of 3- [isocamphyl- (5)] - cyclohexanol, an important ingredient of the sandal body.
  • 3- [isocamphyl- (5)] - cyclohexanol can be produced in a substantially more economical manner than by the previously known processes.
  • the ethers according to the invention are incomparably much cheaper than the 2,4-dinitrophenyl ethers, the preparation of which requires the difficult to access and expensive 2,4-dinitrofluorobenzene.

Claims (4)

1. Ethers [isocamphyl-(5)]-gaïacyliques de formule
Figure imgb0006
dans laquelle
R représente un reste isocamphyle-(5) en position 6 ou 4 par rapport au groupe éthoxy.
2. L'oxyde de 4-[isocamphyl-(5)]-gaïacyle et d'éthyle.
3. Procédé de préparation des éthers [isocam- phyl-(5)]-gaïacyliques de formule
Figure imgb0007
dans laquelle
R représente un reste isocamphyle-(5) en position 6 ou 4 par rapport au groupe éthoxy, caractérisé en ce que l'on alkyle le 6- ou le 4-[isocamphyl-(5)]-gaïacol à l'état de sel alcalin par un halogénure d'éthyle ou le sulfate de diéthyle.
4. Utilisation des éthers [isocamphyl-(5)]-gaïa- cyliques selon les revendications 1 et 2 pour la préparation du 3-[isocamphyl-(5)]-cyclohexanol.
EP19800102822 1979-05-25 1980-05-21 Ethers éthyliques d'isocamphyl-gayacol, procédé pour leur préparation, et leur utilisation pour la préparation de 3-(isocamphyl-(5))-cyclohexanol Expired EP0019845B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792921139 DE2921139A1 (de) 1979-05-25 1979-05-25 Ethylether des isocamphyl-guajakols, verfahren zu ihrer herstellung und ihre verwendung zur herstellung von 3- eckige klammer auf isocamphyl-(5) eckige klammer zu -cyclohexanol
DE2921139 1979-05-25

Publications (2)

Publication Number Publication Date
EP0019845A1 EP0019845A1 (fr) 1980-12-10
EP0019845B1 true EP0019845B1 (fr) 1982-09-08

Family

ID=6071619

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800102822 Expired EP0019845B1 (fr) 1979-05-25 1980-05-21 Ethers éthyliques d'isocamphyl-gayacol, procédé pour leur préparation, et leur utilisation pour la préparation de 3-(isocamphyl-(5))-cyclohexanol

Country Status (4)

Country Link
US (1) US4245124A (fr)
EP (1) EP0019845B1 (fr)
JP (1) JPS55157528A (fr)
DE (2) DE2921139A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19622187A1 (de) * 1996-06-03 1997-12-04 Bayer Ag Verfahren zur Herstellung von Isocamphyl-cyclohexanolen
DE19638300A1 (de) * 1996-09-19 1998-03-26 Bayer Ag Verfahren zur Herstellung von Isocamphyl-cyclohexanolen
FR2944789B1 (fr) * 2009-04-22 2011-05-20 Rhodia Operations Procede de preparation d'un terpenylcyclohexanol

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2581916A (en) * 1948-02-21 1952-01-08 Firestone Tire & Rubber Co Formation of terpene aryl ethers
US2537647A (en) * 1948-02-21 1951-01-09 Firestone Tire & Rubber Co Rearrangement of terpenyl aryl ethers
GB1084235A (fr) * 1963-09-03
DE1668427B2 (de) * 1967-11-03 1976-08-19 Marpha Societe D'etudes Et D'exploitation De Marques S.A., Paris 6-isobornyl-3,4-dimethylphenol
GB1306217A (fr) * 1969-07-04 1973-02-07
US4112000A (en) * 1974-04-11 1978-09-05 Mar-Pha, Societe D'etude Et D'exploitation De Marques Terpenophenols
DE2707340C2 (de) * 1976-03-01 1983-07-14 International Flavors & Fragrances Inc., New York, N.Y. Aromatisches Gemisch
US4014944A (en) * 1976-03-01 1977-03-29 International Flavors & Fragrances Inc. Process and product produced by said process

Also Published As

Publication number Publication date
US4245124A (en) 1981-01-13
EP0019845A1 (fr) 1980-12-10
DE2921139A1 (de) 1980-12-04
DE3060823D1 (en) 1982-10-28
JPS55157528A (en) 1980-12-08

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